Leaf Vac as a mulch spreader

I am wondering if anyone has done this before or have any results from doing this? I am thinking of reversing essentially a leaf vacuum and spreading mulch with it. I understand that some mulch will not work and defeat the purpose since the leaf vac will shred the mulch.

as long as the mulch is good an dry it will blow just like a mulch blower, make a tray to fed the intake hose an on the discharge side start off with 6 inch black drain pipe an taper down to a 4 inch, blow away !!

So have you actuly done this before? I am considering buying a debris loader from billy goat and using it as a multi purpose debris loading monster. If you have any more info about what was used or some suggestions.